how to handle License for MySQL, PostgreSQL & Co ?

[Jimmy]

hi,

if we use MySQL or PostgreSQL we must buy a License, but "where" to buy and how much does it cost

[nageswaragunupudi]

Both are free
We can download and install on any computer.

Though full versions are Microsoft SQL and Oracle are costly, we can freely download and install their Express Editions viz., SQLEXPRESS, Oracle Express, whose main limitation is Database Size (around 10/12 GB) which is more than enough for development as well as small businesses.

[Jimmy]

hi,

i´m asking while Alaska want to pay for PGDBE when use it
https://www.alaska-software.com/products/pg-product-list.cxp

it is new for me that a Company sell a Product and want to have Money, every Year, to use a "Wrapper" for a "Open-Source" Product

[nageswaragunupudi]

ADO is free for all of us and we can work with any RDBMS.

In addition,
Harbour provides an excellent Library for working with PostGre. I think we should be able to use this library even with HMG.
For MySQL/MariaDB, we have FWH built-in library in addition to TDolphin and TMySql.
Most probably TDolphin and TMySql may work well with HMG also.

[richard-service]

ADO is free for all of us and we can work with any RDBMS.

In addition,
Harbour provides an excellent Library for working with PostGre. I think we should be able to use this library even with HMG.
For MySQL/MariaDB, we have FWH built-in library in addition to TDolphin and TMySql.
Most probably TDolphin and TMySql may work well with HMG also.

Mr.RAO

Yes, I agree with you.

Jimmy,

I use TMySQL and MySQL for my customers working fine.

[Jimmy]

hi,

thx for Answer

as i know MySQL is using GPL License, which means you need to purchase a commercial license to distribute proprietary code that uses those libraries.

PostgreSQL use MIT license, where you "only" must include MIT License TEXT with Copyright

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the Question is "where" i have to "pay" for it to use "Wrapper" to connect to Backend
Alaska want me NOW to "buy" a License to use PGDBE which is Alaska Way to connect to Backend using ISAM Style

[Marc Venken]

Maybe this is not related, but can we also connect to
Pervasive PSQL V13 files ?

I want to import data into my dbf files (

Pervasive before was using BTrieve files (still do) but the old connection program is not working anymore

[Baxajaun]

Hi Marc!

Have you try https://www.connectionstrings.com/pervasive/ ?

Regards,

[nageswaragunupudi]

We can not distribute servers. (server software)
But we can distribute any application using ADO or Harbour or FWH libraries either for free or at cost without any licenses to work with any RDBMS/database installed or hired by the user.

[carlos vargas]

Use mariadb not MySQL.